<!DOCTYPE html>
<html>
<head>
   <meta charset="utf-8">
   <base href="http://www.acfun.com" target="_blank">
</head>
<body>
     <form action="1.php" name="myform" id="hh">
        username:<input type="text" name="username"
         value="54321">
         <button type="submit">提交</button>
         <button type="reset">重置</button>
     </form>
     <hr>

     <button onclick="document.myform.submit()">JS提交</button>
     <button onclick="document.myform.reset()">JS重置</button>

     <button form="hh">提交()HTML5</button>

     <hr>
     <a href="../QYJS05/index.html">JS05</a>
     <a href="../QYJS06/index.html" target="_blank">JS06</a>
     <a href="./QYJS06/index.html">JS06</a>
     <a href="http://www.bilibili.com">B站</a>
</body>
</html>